Effects of Cannabis Administration Routes on Human Performance and Pharmacokinetics
Public ClinicalTrials.gov record NCT02177513. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: \- Marijuana (cannabis) is an illegal drug. Researchers want to study people s reactions, attention, and behavior after they take marijuana in different ways. They want to learn better ways to detect drugs in a person s body They also want to know how long marijuana can be found in blood, urine, saliva, and breath. Objectives: \- To learn how people respond to delta-9-tetrahydrocannabinol (THC, a marijuana component) and how their bodies handle it after it is given in different ways. Eligibility: \- Adults age 18 50 who use marijuana. Design: * Participants are screened under another NIDA protocol. * This study involves up to 6 visits to NIDA. * At the first visit, participants will practice the tasks and tests they will do at their dosing sessions. They will learn how to give breath and saliva samples. * Dosing sessions 1 4 will last 3 5 days each. All participants will be admitted to a research clinic the night before these sessions. Some participants can stay at the clinic and some must go home between sessions. * At each session, participants will eat a brownie with placebo or marijuana. Then they will smoke a placebo or marijuana cigarette. Some will inhale placebo or marijuana after it is vaporized. * Throughout the sessions: * Participants will give urine, saliva, and breath samples. Their blood will be taken with a tube in a vein and finger pricks. Their vital signs will be checked. * Participants will answer questionnaires and take thinking tests. They will also take tests that assess eye movement, balance, and time estimation. * Participants may have a 5th dosing session. They will eat a marijuana brownie and have the above tests and samples.
Study identification
- NCT ID
- NCT02177513
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 28 participants
Conditions and interventions
Conditions
Interventions
- Placebo + Placebo Drug
- Oral Cannabis + Placebo Drug
- Placebo + Inhaled Cannabis Drug
- Placebo + Smoked Cannabis Drug
- 6.9% cannabis oral Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 50 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 13, 2014
- Primary completion
- Apr 26, 2016
- Completion
- Apr 26, 2016
- Last update posted
- Dec 15, 2019
2014 – 2016
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institute on Drug Abuse | Baltimore | Maryland | 21224 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02177513, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 15, 2019 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02177513 live on ClinicalTrials.gov.